(届北京市东城区普通校高三3月联考 )-You were not in when I came over to your house.-Oh, I ____________ for a friend from England at the airport.
Great changes ______ in China in the past 20 years.
His illness his absence.
When the man was trying to break into the bank, he was caught by the police.
My best friend who _______ a rich man two years ago has a baby now.
It snowed heavily; ______, lots of flights have been put off until further notice.